Advertising sign



May 5, 1931,

A. RQSENSTEIN ADVERTISING SIGN Filed Feb. 2, 1929 2 Sheets-Sheet l May5, 1931.

A. ROSENSTEIN 1,803,439

ADVERTISING SIGN Filed Feb. 2, 1929 2 sheets-sheet 2 VIM( UNI-TEO.STA-Tes AARON `ROS ENSTEIN, O F NEW YORK, N. Y.,

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V;ily. attached to the areoplane. v l Other objects andadvantagesfwillibe ap'-v f `ll ','iift' wfl Y i paientfiom the fo owing`speel ca lon 43411.9 K. favof the Wmg lojepachgmup heling adaptedPatented May 5, V1931 PATENT VOri-ICE As'sIeNoR'ro laosnnsrnna BROS. aHOOK,

OF NEWYORK, N. Y., A oonPoRA'rION' Or'NEW JERSEY- ADVERTISING SIGNIApplieation filed February 2, 1929. Serial IIa-337,004,

My present invention relates to advertising signs, and more particularlytovan advertising sign for use on aeroplanes;

Advertising signs for useonthe Wings of' jaeroplanes, as heretoforeconstructed, have been impractical for a number of reasons.Y

One'of the Objections is due to the fact that the signs have not beencompletely interchangeable. Another ,objectionl has been thatfthe signshavef'not'conformed to the lines ofthe vaeroplane Wing, thus interferingwith the `speed of t-he aeroplane,

My invention isran improvement on the ade vertising'sign patents of.Mitchell and La Grasse, No. 1,474,682, La Grassa, `l\los,.V

1,505,714. land 1,509,046', and v=Ho ol{, No.'

1,506,638. I Y i p vThe principal object of my invention is'to providelan advertising sign for use upon aeroplanes or the like which thesignletters or able. f e

Another Object of the invention is tog provide a sign Which Willsubstantially 'conform 'v to the lines of the Wings ofvtheaeroplane, sothat the surface Vof the sign'vvillfjbe flush- With the surface of the,Wing.

A stillfurther object of the invention is to" provideV a sign of thistype Which can be readdraWing, in' Which l Figurel isaview of theundersurface of avv portion of therme-2 2 of Figure isa longitudinalcross sectionofV a fabric-'covered aeroplane W1ng showing panels Willbecompletely interehange-v Figure is @view Y0f lumilieli Vapor. tbe'formed into aletter and particularly adapted for use With aeroplanes,

. t Figure 6 is a top edge VvieWVvof-the letter shown in Fig. 5,

. Figure v7- is a vieW- of the lower surface of a portion of the'lovverwing of a metal aeroplane, showing a modied form of sign structure, f

Figure 8 is a cross-sectional view taken on the lineA 9--79` of Fig.7,and

Figure 9 is a sectional View, similar lto Fig. 8, showing-the method ofattaching the signY panel shown yin Figs. T and 8 to a fabric-coveredVaeroplane Wing. v i l `In the form of the' invention shown in Figs.` 1to3, the numeral 10 designates the lower Wing of an aeroplane the fulageof which is indicated by the numeral 8O. Luminous Vapor tubes 23 formedto the outlines of. letters are shown attached to the lower surface ofthe Wing 10 `by means of clamps or brackets 14, The clamps or brackets14 are generally U-shaped so as to conform to the outline of the tubes11 and `are' provided vwith 4ears 35 adapted to` bear against the -iedi'nto Vnuts 29Vca`r'ried in slotted. Ways 1i',

As shown in Figi4 1 groups slotted ways 12,- 13, and 15 a'raprovided onthe lower surto hold a singleletter tube 11', Order that neiv lettertubes'may'be aiiixedfto each group of slots or letter position, it'ispreferable yto provide several longitudinally extending slots 12, anupper central' slot 13, an upper corner slot 13", a lower' central slot15, and aflovver cornerA slot'157. t

As has been stated above, in order to hold Sign letters-uren the Wugathebolts 28 @X- t-end th@ S10-tis." 181. 13,. and 15,7 naccord'an WththeOutline Oftheletters'w besecued, 'and engage ,the mits 29- Thenuts 29are held in alignment with the slotted ways 12, 13, 13, and 15 by meansof the plates 16 which are secured to the inner surface of the underside of the wing by means of set screws 1S. The plates 16 are providedwith a central groove 17 in alignment with the slots 12, 13, 13, 15 andl5, the groove 1T being so shaped as to prevent rotation of the nuts 29.A number of nuts snflicient for all purposes may be placed in the groove17 of the plate 16 when the plane is constructed, or at any timethereafter. When a letter tube Q3 is to be attached to the wing, it ismerely necessary to slide the nuts 29 to points where they will be inalignment with the positions which must be given the bolts 28 and clamp14 to secure the desired letter to the wing. rlhe bolts Q8 will then betightened to draw the clamp 14 securely against the letter tube 11. Y

It is believed that the showing in the drawing of the arrangement of theclamps 14 for attaching the letters A, E, R, O upon a. plane willclearly indicate the various positionings of the clamps which must beworked out to secure various letters of the alphabet.

In order to supply current to the luminous letter tubes 23, a group ofcontact sockets 27 is provided with each group of letter-positioningslots 1Q, 13, 13', 15 and 15. By providing a plurality of sockets 27, itwill be possible to supply current to a tube formed into any letter. Thetube contact plugs 92 are flexibly secured to the tube by means of wires91 of opposite polarities leading into the rear face of the tubes at twopoints as is customary in sign letters of this type. Electric currentmay be supplied to the sockets 27 'from a generator or any suitablesource upon the aeroplane.

In Fig. 4, I have illustrated a fabriccovered aeroplane wing 19 to whichluminous letter tubes may be attached in much the same manner as hasbeen described above. Brackets 14 will be secured to the aeroplane wingby means of screws 34 extending into the spars 20 of the wing. In theevent that the spars 2O are not sufficiently close together toaccommodate the desired number of letter tubes. additional spars orcross members 22 may be built into the wing 19. y

In Figs. 5 and 6, I have illustrated a forni of luminous sign lettertube which is particularly adapted for use on aeroplanes. For thepurposes of showing my invention, I have illustrated it as applied tothe letter A. However, it will be understood that it may be used in theconstruction of any luminous letter tube. In forming the tube, the upperedge of the upper portion 24 of the letter is tapered down on its upperor exposed side. The under surface of the letter tube (the surface whichcontacts with the aeroplane wing) is made substantially flat. Thisarrangement results in the provision of a knife edge on the portion ofthe letter facing in the direction of flight of the aeroplane and thuscuts down wind resistance. The trailing edge of the letter tube 26 mayalso be streamlined, as shown. In forming the letter' A it will ofcourse be understood that the entire outer and upper edge 25 of theletter should preferably be streamlined, thus avoiding the windresistance which might occur if the sides of the letter were formed inthe usual manner.

In Figs. 7 and 8, I have illustrated an arrangement for attaching signpanels or letter panels to the under surface of the lower wing of anaeroplane in such a manner that the surfaces of the panels will be flushwith the surface of the aeroplane wing. The numeral 40 designates thelower wing of a metal aeroplane. Letter panels 41 are secured to theunder surface of the wing 40 by means of set screws 43. As shown in Fig.8, the side edges of the panels 41 are angled or olf-set, as indicatedby the numeral 49, so that they may be fitted into slide Ways 44extending from the front to the rear edges of the aeroplane Wing 40. Theset screws 43 extend through the olf-set portions 49 of the letterpanels, so that the latter are securely held in position.

The panels 41 are preferably formed of metal sufficiently flexible toconform to the curving outline of the aeroplane wing, and the letters 47outlined in the panels 4l are preferably formed of Celluloid, so thatthey will be flexible as well as translucent, although the letters maybe formed of sections of glass so arrangedas to give the desiredflexibility. The Celluloid orglass or the like may be held in place inthe panels 41 by means of clamping plates secured to the lower surfaceof the panels by screws 61. Light bulbs 46 are mounted in reflectors "45beneath the panels 41 so as to illuminate the letters 47. Electriccurrent to illuminate the bulbs 46 may be supplied from a generator orthe like carried on the aeroplane.

In Fig. 9, I have shown an arrangement for securing letter panels tofabric-covered aeroplane wings. It will be seen that the panelsr41 aresecured in exactly the same manner as is described above in connectionwith Figs. 7 and 8, except that the edges 49 of the panels are mountedin spars or additional. cross pieces 48. The light bulbs 46 are mountedupon supports 5() extending between the spars or cross pieces.Reflectors may be provided if desired.

I claim:

1. The combination Vwith an aeroplane wing, said wing having a pluralityof slots in the surface thereof and arranged in an angularly disposedgroup, of a luminous letter tube, removable securing elements adapted tosecure said tube against the surface of the wing, said elements beingselectively positioned in the slots of said wing, and an electric socketfor supplying current to said tube.

2. The combination with an aeroplane Wing having a plurality of slots inthe surface thereof and arranged in angularly disposed groups, of anoutline sign letter adapted to be placed against the surfaceof the Wingand means adapted to secure the letter to the Wing Comprising bracketsselectively positioned in the Slots in the Wing surface.

3. Tlie combination With an aeroplane Wing, said Wing having a pluralityof angularly arranged slots therein, of a letter and movable elements'adapted to secure said letter to the Wing, said elements beingselectively positioned in the slots in said Wing.

AARON ROSENSTEIN.

